On Sun, 11 Jan 2009, Heston Capital wrote:
I am new to R and am trying to import a text file that contains date/time and various fields. I want to sort this matrix by date and also perform calculations on the date field (difference between two dates etc).The format of the string looks as follows: x<-c("25/2/2003 0:00:00") I tried: as.Date(x,format='%d/%m/%y') [1] "2020-02-25" Obviously I am doing something wrong here. I would like to remove the
You have a 4-figure date, so need %Y not %y. See ?strptime.
hh:mm:ss from the end of the string if possible. Thanks for your help, I have been searching for hours and not getting anywhere. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
-- Brian D. Ripley, rip...@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
